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Civil Engineering QUESTION #6574
Question 1
In open channel flow the pressure condition is __________, whereas in pipe flow the pressure is __________:
  • Atmospheric; higher than atmospheric✔️
  • Atmospheric; lower than atmospheric
  • Atmospheric; atmospheric
  • Hydrostatic; atmospheric
Correct Answer Explanation
Open channel flow has a free surface exposed to the atmosphere (\(p = p_{atm}\)). Pipe flow operates under pressure, which is typically above atmospheric to drive the flow.